Students can practice Telangana 6th Class Maths Textbook Solutions Chapter 5 Measures of Lines and Angles Ex 5.2 to get the best methods of solving problems.
TS 6th Class Maths Solutions Chapter 5 Measures of Lines and Angles Exercise 5.2
Question 1.
Write ‘True’ or ‘False’. Correct all those that are false.
(i) An angle smaller than right angle is acute angle. ___________
Answer:
True
(ii) A right angle measures 180°. ___________
Answer:
False
A right angle measures 90°. (correct)
(iii) A straight angle measures 90°. ___________
Answer:
False
A straight angle measures 180°. (correct)
(iv) The measure greater than 180° is a reflex angle. ___________
Answer:
True
(v) A complete angle measures 360°. ___________
Answer:
True
Question 2.
Which angles in the adjacent figure are acute and which are obtuse ? Check your estimation by measuring them. Write their measures too.
Answer:
In the adjacent figure The measure of ∠1 is 80°
The measure of ∠2 is 100°
The measure of ∠3 is 80°
The measure of ∠4 is 100°
∠l and ∠3 are acute angles because they are less than 90°.
∠2 and ∠4 are obtuse angles because they are greater than 90° and less than 180°.
Question 3.
What is the measure of these angles ? Which is the largest angle ? Draw an angle larger than the largest angle.
Answer:
∠ABC = 70°
∠FED = 120°
∠RQP = 90°
∠FED is the largest angle.
An angle larger than the largest ∠DEF is ∠STU = 150°
Question 4.
Write the type of angle formed between the long hand and short hand of a clock at the given timings. (Take the small hand as the base)
(i) At 9’0 clock in the morning
(ii) At 6’0 clock in the evening
(iii) At 12 noon
(iv) At 4’0 clock in the afternoon
(v) At 8’0 clock in the night.
Answer:
The angle formed between the long hand and short hand of a clock.
(i) At 9’O clock in the morning is right angle.
(ii) At 6’O clock in the evening is straight angle.
(iii) At 12 noon no angle is formed because the two hands coincide.
(iv) At 4’O clock in the afternoon is obtuse angle.
(v) At 8’O clock in the night is reflex angle.
Question 5.
Match the angles by measure. Draw figures for these as well.
| Group – A | Group – B |
| 1. Acute angle | (a) 90 ° |
| 2. Right angle | (b) 270 ° |
| 3. Obtuse angle | (c) 45 ° |
| 4. Reflex angle | (d) 180 ° |
| 5. Straight angle | (e) 150 ° |
Answer:
